Keystones — Lintel
Five GCSE retrieval questions · 24 April 2016 · mathsvault.uk/keystones
-
1. Number Converting to standard form
Write 95,000 in standard form
Answer: 9.5 × 104 -
2. Algebra Factorising monic quadratics
Factorise: x² - 13x + 40
Answer: (x - 5)(x - 8) -
3. Geometry SOHCAHTOA — missing length
Hypotenuse = 27cm, angle = 45°. Find adjacent side. Give your answer to 2 decimal places
Answer: 19.09cm -
4. Ratio Mixed ratio problems
Simplify the ratio 5 hours : 50 minutes
Answer: 6:1 -
5. Statistics Mean
Calculate the mean of: 5, 35, 36, 21, 31, 29, 15, 46
Answer: 27.25